The US military says one of its helicopters has come down north-east of the Iraqi capital, Baghdad, killing all 13 people on-board.
The military did not say what caused the helicopter to crash.
The US has suffered several fatal helicopter crashes in Iraq since the invasion in 2003.
In December, four US troops were killed when the helicopter they were travelling in crashed in the restive Western Anbar province.
"A US forces helicopter went down north-east of Baghdad this afternoon. Emergency Coalition Forces responded and secured the scene," a military statement said, Reuters news agency reported.
"Thirteen passengers and crew members were aboard the aircraft and all were killed."
http://news.bbc.co.uk/1/hi/world/middle ... 282839.stm